Name: Creamy Chicken Tetrazzini Casserole Recipe
Prep time: 15 min
Cook time: 40 min
Total time: 55 min
Cuisine: American
Ingredients: 1 (16-ounce) package linguine, or fettucine or spaghetti; 4 chicken breasts, cooked and diced; 2 (10.5-ounce) cans cream of chicken soup; 2 cups sour cream; ½ cup unsalted butter, softened; 1 cup chicken broth; 1 teaspoon garlic salt with parsley flakes; ½ teaspoon pepper; 2 cups shredded mozzarella cheese; 2 tablespoons grated Parmesan cheese

Jump to Recipe· 4.2 from 32 reviews

If you adore comfort food that wraps you in a warm, cheesy hug, this Creamy Chicken Tetrazzini Casserole Recipe is about to become your new favorite go-to. Combining tender chicken, silky noodles, and a dreamy mix of creamy soup and sour cream, this casserole bakes up golden and bubbling with a rich, cheesy crust that will have everyone asking for seconds. It’s effortless to prep, perfect for feeding a crowd, and so versatile you can customize it with your favorite veggies or make it ahead for busy weeknights. Let me take you step-by-step through this timeless dish that’s as satisfying as it is easy to make!

Ingredients You’ll Need

The image shows a white rectangular baking dish filled with a creamy pasta casserole. The top layer is golden melted cheese sprinkled with chopped green herbs. Beneath the cheese, there is a thick creamy sauce covering pieces of white meat and long pasta noodles. A metal serving spoon is scooping some of the casserole from the corner, revealing layers of pasta, sauce, and meat inside. The dish is placed on a white marbled surface with a soft striped cloth nearby. Photo taken with an iphone --ar 4:5 --v 7

These ingredients are wonderfully simple but pack incredible flavor, texture, and color to elevate this casserole into a family favorite. Each one plays a vital role in creating that luscious, cheesy, and creamy feel that makes this recipe so addictive.

1 (16-ounce) package linguine (or fettuccine or spaghetti): Choose your favorite long pasta to soak up all the creamy goodness.
4 chicken breasts, cooked and diced: Tender, lean protein that makes this dish hearty and filling.
2 (10.5-ounce) cans cream of chicken soup: The creamy base that binds everything with richness and flavor.
2 cups sour cream: Adds tang and silkiness for that signature creamy texture.
½ cup unsalted butter, softened: Enhances the overall richness and moistness of the casserole.
1 cup chicken broth: Keeps the mixture moist and adds a subtle savory depth.
1 teaspoon garlic salt with parsley flakes: Delivers a gentle garlic flavor and a pop of green color.
½ teaspoon pepper: Perfectly balances the flavors with a touch of heat.
2 cups shredded mozzarella cheese: Melts beautifully to create that irresistible gooey topping.
2 tablespoons grated Parmesan cheese: Adds a nutty, sharp kick that makes the cheese layer unforgettable.

How to Make Creamy Chicken Tetrazzini Casserole Recipe

Step 1: Prepare Your Pasta and Chicken

Start by preheating your oven to 350°F and greasing a 9×13-inch casserole dish for easy cleanup later. Cook your linguine (or preferred pasta) according to the package directions until just al dente, then drain and set aside. If your chicken breasts aren’t cooked yet, season and cook them until tender, then dice into bite-sized pieces. This stage sets the groundwork for a perfectly balanced casserole.

Step 2: Mix the Creamy Base

In a large bowl, combine the cream of chicken soup, sour cream, softened butter, chicken broth, garlic salt with parsley flakes, and pepper. Whisk together until smooth and creamy—that’s the magic sauce that brings all the flavors together.

Step 3: Combine Pasta, Chicken, and Sauce

Stir the cooked chicken and noodles gently into your creamy mixture, making sure every strand is coated. This ensures each bite is full of luscious creaminess and tender chicken, spreading flavor evenly throughout the casserole.

Step 4: Assemble and Top Your Casserole

Pour the mixture into the prepared casserole dish, spreading it out evenly. Sprinkle the shredded mozzarella and Parmesan cheese generously over the top. That cheesy layer is essential for that golden, bubbling finish everyone loves.

Step 5: Bake to Perfection

Place your dish in the oven and bake uncovered for 36 to 42 minutes. Look for the cheese to be melted and bubbling with lightly golden spots on top that promise creamy, savory goodness beneath the crust.

How to Serve Creamy Chicken Tetrazzini Casserole Recipe

A white bowl filled with creamy pasta mixed with small white cubes of chicken. The pasta is light yellow and tangled together, coated in a thick white sauce that looks smooth and rich. The white sauce covers the pasta and chicken evenly, creating a soft texture with slight lumps from the chicken pieces. A utensil with a metal handle and a blue and green silicone part is resting inside the bowl. The bowl is placed on a surface with white marbled texture. photo taken with an iphone --ar 4:5 --v 7

Garnishes

Once it comes out of the oven, sprinkle some chopped fresh parsley or a light dusting of extra Parmesan for a splash of color and a fresh flavor boost. A few red pepper flakes can add a nice gentle kick if you like a bit of heat.

Side Dishes

This casserole pairs beautifully with crisp green salads, roasted or steamed vegetables like broccoli or green beans, or even garlic bread to soak up any extra creamy sauce. It’s a hearty meal that welcomes fresh, light sides for balance.

Creative Ways to Present

For a charming presentation, serve individual portions in small ramekins with an extra sprinkle of cheese broiled on top. You can also add a crunchy topping by toasting panko breadcrumbs with butter and sprinkling them over the casserole before baking for extra texture and flavor.

Make Ahead and Storage

Storing Leftovers

Store any leftover Creamy Chicken Tetrazzini Casserole Recipe in airtight containers in the refrigerator for up to three days. Reheat gently in the oven or microwave, adding a splash of broth if it seems thick.

Freezing

This recipe is a freezer-friendly superstar. Assemble the casserole without the cheese topping, cover tightly with plastic wrap and foil, then freeze for up to three months. When ready to enjoy, thaw overnight in the fridge, add the cheeses, and bake as directed.

Reheating

Reheat leftover casserole in the oven at 350°F for 20 minutes or until warmed through and the cheese is bubbly again. You can cover it with foil for the first 15 minutes to prevent over-browning, then remove it to crisp up the top.

FAQs

Can I use rotisserie chicken instead of cooking chicken breasts?

Absolutely! Using rotisserie chicken is a fantastic shortcut that adds extra flavor and saves time without sacrificing the dish’s creamy delight.

Is there a way to make this recipe healthier?

You can lighten it up by swapping sour cream for Greek yogurt and using part-skim mozzarella. Adding more vegetables like spinach or mushrooms can also boost nutrition and flavor.

What other cheeses work well for topping this casserole?

Sharp cheddar or Gruyère are excellent alternatives or additions to mozzarella and Parmesan, providing extra depth and richness.

Can I make this casserole vegetarian?

Yes! Substitute the chicken with sautéed mushrooms, roasted vegetables, or a plant-based chicken alternative, and use vegetable broth instead of chicken broth.

How do I prevent the casserole from drying out during baking?

Make sure to mix the chicken broth thoroughly into the creamy sauce and avoid overbaking. Covering with foil during baking can help retain moisture if you’re concerned.

Final Thoughts

This Creamy Chicken Tetrazzini Casserole Recipe is a wonderful way to bring warmth and comfort to your dinner table with minimal fuss. Whether you’re feeding a crowd or meal prepping for the week, this dish delivers big on flavor, creaminess, and that irresistible cheesy finish. I know once you try it, it will become a beloved staple in your recipe collection just like it has in mine. Happy cooking!